2189913 has 8 divisors (see below), whose sum is σ = 3185376. Its totient is φ = 1327200.

The previous prime is 2189881. The next prime is 2189939. The reversal of 2189913 is 3199812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2189913 - 2⁵ = 2189881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 66361 = 2189913 / (2 + 1 + 8 + 9 + 9 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (2189513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33148 + ... + 33213.

It is an arithmetic number, because the mean of its divisors is an integer number (398172).

2^2189913 is an apocalyptic number.

It is an amenable number.

2189913 is a deficient number, since it is larger than the sum of its proper divisors (995463).

2189913 is a wasteful number, since it uses less digits than its factorization.

2189913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66375.

The product of its digits is 3888, while the sum is 33.

The square root of 2189913 is about 1479.8354638270. The cubic root of 2189913 is about 129.8600663903.

It can be divided in two parts, 21899 and 13, that added together give a palindrome (21912).

The spelling of 2189913 in words is "two million, one hundred eighty-nine thousand, nine hundred thirteen".